The real answer is that you should have been integrating an existing email account with BIS. You could then retrieve and do whatever with your email on your PC.

If, instead, you have been using your *.blackberry.net account which is not recommended then you'll need to forward each email. I highly recommend not using that address for anything other than forwarding.

Ok...I have 3 email accounts on my BB All my important emails are saved. Is there a way to auto forward all incoming emails to my BB to lets say Gmail or something?

There isn't an option on the Blackberry to forward e-mail to another e-mail account. If you want the e-mails from your three accounts to go to a Gmail account (in addition to your Blackberry), you will have to set up the fowarding from the individual e-mail accounts. Some web-based e-mail providers (e.g., Yahoo!) may charge extra for forwarding capabilities. Additionally, if you are receiving e-mail using a client application, you may have the option to create a rule.